[Elecraft] KX1 #01221 Alive but shy of stated power?
Jeremy Cowgar
jeremy at cowgar.com
Thu Aug 4 11:20:15 EDT 2005
Why the difference, they are all the same rig why would it change from
rig to rig?
Jeremy
KB8LFA
Coote, Jay wrote:
>Jeremy and List;
>Your KX-1 turned out better than mine. My 10 MHz band is weak and noisy
>on receive plus I had the following transmitter problems:
>I had 4 watts/7MHz and 10 MHz, 2.6 watts/14 MHz at 13.8V; 1.4
>watts/7MHz and 0.8 watts/14 MHz at 9.0V.
>I've tried the changes in R11 and R30 to increase power output, however
>this just increases power and does nothing for my 14 MHz power roll-off.
>Mine obviously does not meet spec and it is good to have suggestions on
>what to try next from Elecraft. I've heard of people getting 4 watts or
>more, nearly flat across all three bands. That power rise on 14 MHz at
>9V does sound odd... I would have guessed it to be around 1 watt. Is
>your power supply at 9V delivering enough current or is there a voltage
>drop- possibly preventing a relay from opening/closing and changing the
>specs of the RF filters on the PA?... A guess.
>
>
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